Application of the time-frequency technique for analysis of velocity fluctuations in the wake of a teardrop profile in the presence of a localized flow inhomogeneity

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Application of the time-frequency technique for analysis of velocity fluctuations in the wake of a teardrop profile in the presence of a localized flow inhomogeneity. / Mironov, D. S.; Lebiga, V. A.; Zinoviev, V. N. et al.

In: Journal of Physics: Conference Series, Vol. 2057, No. 1, 012025, 08.11.2021.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{295149caf4c24cc38557495c720f9137,

title = "Application of the time-frequency technique for analysis of velocity fluctuations in the wake of a teardrop profile in the presence of a localized flow inhomogeneity",

abstract = "Experimental simulation of the inhomogeneity of the incident flow localized in time and space on a bluff tear-drop airfoil is carried out. It is shown that in the region outside the aerodynamic wake of the tear-drop airfoil, the presence of inhomogeneity leads to an increase in the amplitudes of velocity fluctuations in a wide frequency range. In the region inside the wake, the presence of inhomogeneity leads to the suppression of velocity fluctuations at the frequency of vortex shedding by a factor of 2–3 in amplitude. The intensification of fluctuations at frequencies above the main one was also noted, and there was no effect on fluctuations at lower frequencies.",

author = "Mironov, {D. S.} and Lebiga, {V. A.} and Zinoviev, {V. N.} and Pak, {A. Yu}",

note = "Funding Information: The work was carried out within the framework of a grant from the Russian Science Foundation # 20-49-08006. Publisher Copyright: {\textcopyright} 2021 Institute of Physics Publishing. All rights reserved.; 6th All-Russian Conference on Thermophysics and Physical Hydrodynamics, TPH 2021 and the School for Young Scientists on Thermal Physics and Physical Hydrodynamics: Modern Challenges, TPHMC2021 ; Conference date: 22-08-2021 Through 29-08-2021",

year = "2021",

month = nov,

day = "8",

doi = "10.1088/1742-6596/2057/1/012025",

language = "English",

volume = "2057",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

}

RIS

TY - JOUR

T1 - Application of the time-frequency technique for analysis of velocity fluctuations in the wake of a teardrop profile in the presence of a localized flow inhomogeneity

AU - Mironov, D. S.

AU - Lebiga, V. A.

AU - Zinoviev, V. N.

AU - Pak, A. Yu

N1 - Funding Information: The work was carried out within the framework of a grant from the Russian Science Foundation # 20-49-08006. Publisher Copyright: © 2021 Institute of Physics Publishing. All rights reserved.

PY - 2021/11/8

Y1 - 2021/11/8

N2 - Experimental simulation of the inhomogeneity of the incident flow localized in time and space on a bluff tear-drop airfoil is carried out. It is shown that in the region outside the aerodynamic wake of the tear-drop airfoil, the presence of inhomogeneity leads to an increase in the amplitudes of velocity fluctuations in a wide frequency range. In the region inside the wake, the presence of inhomogeneity leads to the suppression of velocity fluctuations at the frequency of vortex shedding by a factor of 2–3 in amplitude. The intensification of fluctuations at frequencies above the main one was also noted, and there was no effect on fluctuations at lower frequencies.

AB - Experimental simulation of the inhomogeneity of the incident flow localized in time and space on a bluff tear-drop airfoil is carried out. It is shown that in the region outside the aerodynamic wake of the tear-drop airfoil, the presence of inhomogeneity leads to an increase in the amplitudes of velocity fluctuations in a wide frequency range. In the region inside the wake, the presence of inhomogeneity leads to the suppression of velocity fluctuations at the frequency of vortex shedding by a factor of 2–3 in amplitude. The intensification of fluctuations at frequencies above the main one was also noted, and there was no effect on fluctuations at lower frequencies.

UR - http://www.scopus.com/inward/record.url?scp=85119607580&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/2057/1/012025

DO - 10.1088/1742-6596/2057/1/012025

M3 - Conference article

AN - SCOPUS:85119607580

VL - 2057

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012025

T2 - 6th All-Russian Conference on Thermophysics and Physical Hydrodynamics, TPH 2021 and the School for Young Scientists on Thermal Physics and Physical Hydrodynamics: Modern Challenges, TPHMC2021

Y2 - 22 August 2021 through 29 August 2021

ER -

ID: 34855921